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Finding the Fourth Proportional to 16,246.56, 22,420.08 and 9,172.56

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Solution

The fourth proportional to 16,246.56, 22,420.08 and 9,172.56 is: 12,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,246.56 : 22,420.08 = 9,172.56 : x
  2. Step 2: Convert to fraction form
    16,246.56/22,420.08 = 9,172.56/x
  3. Step 3: Cross multiply
    16,246.56x = 22,420.08 × 9,172.56
  4. Step 4: Simplify right side
    16,246.56x = 205,649,529.00
  5. Step 5: Solve for x
    x = 205,649,529.00/16,246.56
  6. Step 6: Final answer
    x = 12,658.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.